WASHINGTON — Sen. Lindsey Graham( R-S.C .), who claims to have made a combined rating of 800 on his SATs, wouldn’t stop bragging about his poor academic record at the second-tier Republican presidential candidates’ debate on Wednesday evening.

Graham took part in the debate in Boulder, Colorado, before the main event, in which the 10 leading nominees are scheduled to take the stage. He faced off against Louisiana Gov. Bobby Jindal, former Pennsylvania Sen. Rick Santorum and former New York Gov. George Pataki.

At the event, Graham stimulated multiple remarks about his lack of academic prowess. “This is a beautiful place, ” he said, referring to the University of Colorado, Boulder, where the debate was held. “Looking at their academic criteria, the only way I could have gotten into this university is to be invited to this debate tonight.”

Students in the 25 th and 75 th percentile at the university score between 1060 and 1290 on their SATs, according to the Princeton Review . In his self-published memoir, My Story, Graham wrote that his blended SAT score was 800.( The exam, a rather questionable measure of intelligence, was out of 1600.) Graham said that his “LSAT scores were as poor as SATs had been.”

At the debate on Wednesday, Graham repeatedly bragged about his poor record. “I’m not a scientist and I’ve got the grades to prove it, but I’ve talked to the climatologists of the world and 90 percent of them are telling me that the greenhouse gas consequence is real, ” he said.

He also made a crack about his grasp of the English speech. “Those who bide will have to learn our speech to bide, ” he told. “Because I don’t speak it well but look how far I’ve come.”

In his memoir, Graham elaborated that, “I wasn’t a math wiz, to put it charitably” and in high school, “I constructed Cs mostly.” He added, “I was never going to put a scare into the class valedictorian.” But he became the first person in his family to go to college, attending the University of South Carolina in Columbia. Graham wrote that he feared he “wasnt ready for the academic rigours of a college education, that I would fail, be expelled and crush my mothers dreams.”

Despite this self-deprecation, Graham went on to induce “decent” grades in college and been able to achieve get into law school at the University of South Carolina School of Law, where he jumped to the top 15 percent of his class and made the school’s honor society, he noted.

“Heres what I am good at, though, and what I liked from the beginning about the law. I like telling a narrative, ” he wrote.